Detachable shoe for self-propelled-vehicle wheels.



W. P. SHATTUCK. DETAGHABLE SHOE FOB SELF PROPELLED VEHICLE WHEELSAPPLICATION FILED APR. 22, 1907.

90158426 Patented 0ct.20,1908.

2 $HEETSSHEET 1.

WAL/fl/f 195656 771123? m i I BFQJWJ in the .midst' of AVAILABLE cop?UNITED sT 'rEs PAIENT OFFICE.

WILLIAM P. SHATTUCK, or MINNEAPOLIS, MINNESOTA, AssIGNoR 0F ONE-HALF TOM. Mcvot.

JR., or NEW YORK, Y.

Specification 0! Letters iatent.

Patented Qet. v:20,

Application and April 22, 1907. Serial No. seas-14.

To all whomiit may concern:

Be it known that I, WILLIAM P. Snnrroox,

of Minneapolis, Hennepin county, Minnesota, have invented certain newand useful Improvements in Detachable Shoes for Self- Propelled-VehicleWheels, of which the following is a specification.

In the operation of a self-propelled vehicle, particularly of theautomobile type,

great difficulty is experienced in driving themachine over muddy roadsowing to the fact that the wheels will cut deep into the mud throughthe'weight of the car and en 'ne, and when buried partially or completey to the hubs, will slip and revolve when the riction between the tireand the mud toroll the wheels and cause propu sionof the car.'

extent that the wheel will gri the soil and roll rather than revolvethroug it. lt is, of course, difficult and annoying to attempt to attachanythin" to the wheel tire when owe a bed of mud, and furthermore, anydevice wrapped around the tire should be removed after the mud ispassed, otherwise ,the wheel will bump with each revolution on. hardground and cause uneven riding orjolting of the car and age to the rimof the wheel.

-The object, therefore,oi my invention is to provide means capable ofquick and convenient attachment to the wheel tire to prevent slipping ofthe wheel when immersed in mud and allow rolling of the wheel on hardground without a bump or jolt.

.Myinvention consists generally in a new polling means and means fordetaclmbly securing it to the wheel tire.

. Further, the invention. consists in provid ing a repelling meanslocated normally above't 1e tread of the wheel and hence out of contactwith. the soil except when the wheel Sinks'intoit. g Further, theinvention consists in a propelling device that is capable of attachmentto the tire when the wheel ispartially buried in the mud or sand.

In the acmmpunying drawings, forming part of this specification, Figure-1 is a per ower is applied, there. being insuflicient I resiliency.possible dammoved entirely from the wheel.

wheel rim showing the position of the shoe thereon. Fig. 3 is atransverse sectional 'view of the 'tire and rim, showing the ar-vrangernent. of the propeller blades. Fi 4 is a sectional view iustrating a modifie con struction. Fig. 5 is aside view showing an othermodification. Fig. 6 is a 'SGCtIOIlBl viefiv of the form of propellingdevice shown in, i .5. In the drawing, 2 represents an automobile wheelhaving a pneumatic tire 3. The drawing illustrates a rear wheel sinkinginto the mud through the weight of the car and in this position thewheel would have a, tendenfcg to slip and revolve without having sucient traction to lift the car and pro 1, it forward. The same would betrue if t 1e wheel sl ould be correspondingly sunk down in a san y road.A

4 is a shoe of flexible material, referably leather, having straps 5 and6 at t ie sides of the tire adapted to pass around the rim between the.spokes and secure the. shoe in place snugly against the tread of thewheel. The shoe is comparatively thin and flexible so that-when thewheel is running over hard ground, no jolt or bump would be noticeableand as it strikes the surfaee'over which the wheel is passing it willyield and ad'ust itself to the tread ofthe lire without a ect'ing its Itis practicable the efore, to leave the device on the wheel, and it maybe desirable to do so where muddy or sandy that the driver does not careto go to the trouble of detachlng the shoe between them. In case,however, the cal passes a muddy or stretches of road are so frequentlymet with sandy spot and it seems probable that no other similar place.will be met with for a considerable distance, the. shoe may be re- This,however, is entirely optional with the driver, as no objectionable joltor jar would be noticed by the occupants of the car if the. shoe shouldbe left on the wheel.

Upon the shoe, located, n'el'erably, be-- tween the center of the treadand the point where the. tireabuts the edges of the rim, l

rovide. laterally extending blades 6 projectmg outwardly.bcyond thesides of the fire in lanes substantially at right angles thereto heseblades or win s, as theymav be designated, are refer-ably of metal,though any other suigab e material may be .lsed, and are adapted todrive. or compress lhe mud or other material ahead of them as theyrevolve with the wheel end pack it to such an extent that sullicientresistance to their progress will be. roduccd to form abutments on eachside of t 10 wheel and cause it to be lifted and rolled forward topropel the car.

- The blades, asnoted, do not extend 'entirely under the tread of thetire, but are pressed, and allow the load to be sustained- )y the treadof the wheel.

The locatiorgof the'blades with respect to thetread of the tire is suchthat they will not contact with the soil until the wheel sinks below thenormal tread. it is not, therefore, necessary to remove the shoe whenrunning over hard ground and no damage will result to the tire or therim, nor will there be any disagreeable or annoying bumpin from theprojection of the blades beyond the periphery of the tire.

The shoe is capable of attachment to any sizoof tire and will lit snuglythereon regardless-of the degree of inflation. While the straps atl'ordmeans for eliectually holding the shoe in place they do not in anydegree affect the resiliency of the tire but per- .mit it toacconnnodnte itself to the ground over which the wheel is rolling, inthe same manner as it would if the shoe were not attachcd. The shoebeing attached at one point only on the whecl, can be put in place evenul'tcr the wheel has settled down in the mud and can be removed withequal facility. The shoes may be placed at any desired intervals on' thewheel, several of them being used on a tirc il' dcsired, andindeed thesame i'n'inciple may be utilized in a shoe that completely encirclcs thetire. Such a construction would not, however, permit the convcliicntplacing of the shoe on the wheel when the machine was stalled.

lnstcnd ol' lmviug thc propelling blades on ouch side and ncur thc trendof the wheel, 1 may provid'c plates ts sccurcd by bolts. 9 to the rim oneach side thereof and having ears it) wlielcoll wings or blades 11 arepivoted and ndaptcd to swing down on each side ol' the tire or lieturncd to an upright position above the tire. Springs .12 are attachedto said wings and to the plates 8, and tend to hold the blades ineither. of the said positions,

according to the position of the springs.

in Fig. ,4 l have illustrated one blade in its down position withthe'pring swung past the wherein a shaft 15 is mounted, said shaft comescenter and the other blade in its up position with its spring swung to apoint abovc the center of the plate pivot. Upon approaching ll muddystretch 'of road the blades may be swung down to an operative positionwhere they will engage the material on each side of the wheel andprevent it from slipping. Upon leaving the mud the blades may be swungto an upright inoperative position.

In Figs; 5 and 6 L have illustrated still another modification, whichconsists in providing the flexible shoe substantially as shown in l igs.'2 and 3 and having plates 13 secured thereon and provided with lugs 14.

8!) having a. spiral groove 16 adapted to receive a pin 17 and carryirnblades 18 which, when pressure is applied thereto, will swirl down tothe position indicated by dotted lines in Fig. 6. A spring 19 tends toreturn the shaft 15 to the position shown in Fig. 5 with its blade in araised position. The shoe on the other side of the the will beequippedin a similar manner. Various other modifications in the shapeand manner of mounting the propelling blades may be dev-isethand ifpreferred, a series of blades may be arran ed one in front of the otheron cach'side of the Wheel tread.

Such modifications, however, would be obvious'and entirely within thescope of my invention.

I claim as my invention:

1. The combination, with a wheel and its tire, of a flexible shoe andmeans for securin P it to the tire, metallic plates secured to salt shoeon each side of the center line of the tread of the tire, saidshoeb'ein" ada ted to yield between said plates and allow t 1cm toconform to the compression of the tire, and'105 propclling'bladcsmounted on said plates and adapted to engage the soil as the wheelrevolves, and pack it ahead of. them on each side of the wheel, for thepurpose s eciiicd.

2; The combination, with n. whee and e tire thereon, of a shoe composedof flexibly connected sections adup'tcd to lit the bread of the tire andhaving means for detaclmbly connecting it to the wheel, and laterallypro;

jecting wings carried by said shoe and having comparatively broadbearing surfaces at right angles substantially to the dune ol' thewheel, which surfaces engage the soilund pack 'it ahead of said wings,.whercby rotary slippage of thc tire will be prcvhnted;

v 3. An emergency shoe for temporarily in creasing the traction of amechanically rotated 'vchiclc whcol, comprising a llcxiblc band adaptedto encircle and be detnclinbly connected to the tire and rim of thewheel, bctwccn the spokes ot the latter, and a platecmricd by stud bandand having a laterally projccting wing n( rmally dispo'scdwhcu said shoeis in' use between the normaltrcad of said wheel and hub thereof saidwing having comprising a soil-engagingl a flat face adapted to engagethe soil and resist the rotary slippage of the wheel when 1 the lattersinks into the soil of the roadway.

4. An emergenc traction-increasing shoe for a Ine'chanicall y drivenvehicle wheel, wing having a flat ace ada ted to resist e rotary slippae of the whee when the latter sinks into t e soil of the roadway andmeans for connecting said wing to the wheel with its lowermost edgearranged between the normal tread of the tire-and the hub of thewheeland with the plane of the wing at right angles to the plane of thewheel.

5. An emergenc traction-increasing shoe for a mechanica y driven vehiclewheel,

comprising a flexible band adapted toencirele and to bedetachably-connected to the tire and rim of the wheel between spokesthereof, and a plate carried by said flexible band and having a concavesurface conforming to the shape of the tire on the wheel, said platehaving a soil-engaging wing allfanged to extend, when the shoe is m use,in a lane at right angles to the plane of the whee and adapted to resistthe rotary slippage of the wheel when the latter sinks into the ,eoil ofthe roadway;

In witness whereof, I have hereunto set my hand this'21st da of Februa1907.

v, WIIYLIAM P. S ATTUCK. Witnesses:

J. H. BALDWIN, J. B. EBA.

